Portion of a display screen with user interface



FIG. 1 is a front view of a portion of a display screen with user interface incorporating the design of the present invention.

The broken line drawing of a display screen forms no part of the claimed design.

The other broken lines represent various textual and graphic elements and form no part of the claimed design. 

CLAIM The ornamental design for a portion of a display screen with user interface, as shown and described. 